Features
* Logging. Controlable via cli parameter `--logging=info` or env var `GNWMANAGER_LOGGING=info`.
* Add `--only-if-shrinking` flag to format command.
Bug Fixes
* Fix interactive shell exiting on error. by BrianPugh in https://github.com/BrianPugh/gnwmanager/pull/83
* Add an explicit help command. by BrianPugh in https://github.com/BrianPugh/gnwmanager/pull/84
* fix command chaining; display help if no command given. by BrianPugh in https://github.com/BrianPugh/gnwmanager/pull/86
**Full Changelog**: https://github.com/BrianPugh/gnwmanager/compare/v0.5.2...v0.6.0